Interesting puzzle! I think this is the first one of these that I've seen where >>>> it is impossible to uniquely attach the tents to the trees, but where there is still a unique solution for the placement of the tents (which is all the puzzle rules actually require) <<<<
It stumped me for a bit - thought there was an error in the puzzle until I carefully re-read the rules!
Strange puzzle with 4 to 5 extraneous clues. The '1' in the right-most col (and possibly the '4' in the bottom row to aid the starting logic) was sufficient to solve this.